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a514d325d5
If probing capabilities via QMP fails, we now have a check that prevents us falling back to -help parsing. Unfortunately the error message "Failed to probe capabilities for /usr/bin/qemu-kvm: unsupported configuration: QEMU 2.1.2 is too new for help parsing" is proving rather unhelpful to the user. We need to be telling them why QMP failed (the root cause), rather than they can't use -help (the side effect). To do this we should capture stderr during QMP probing, and if -help parsing then sees a new QEMU version, we know that QMP should have worked, and so we can show the messages from stderr. The message thus becomes "Failed to probe capabilities for /usr/bin/qemu-kvm: internal error: QEMU / QMP failed: Could not access KVM kernel module: No such file or directory failed to initialize KVM: No such file or directory" (cherry picked from commit 25bf888a6653ecdeca58c597c296757f4cf8a229)
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>